Mycorrhiza describes an association between a fungus and a plant root. In arbuscular mycorrhiza, fungal structures develop inside the root cortex, while other hyphae explore the surrounding medium. The plant supplies carbon compounds; the fungal partner participates in nutrient and water relationships. This is a biological relationship, not an ingredient that works independently of a living host.
Keep the context.
Biological compatibility, successful colonisation and a measurable plant response are different questions. The growing conditions matter, and general research is not a promise of a particular result with MegaMyco.
References
Read the biology at its source. These references describe general science and study-specific findings.